From 2cd97880fbc434b49a211784561586f0397499b7 Mon Sep 17 00:00:00 2001 From: Cristian Ciocaltea Date: Tue, 28 Apr 2026 00:57:19 +0300 Subject: [PATCH] arm64: dts: rockchip: Add frl-enable-gpios to rk3576 boards The following RK3576 boards expose a GPIO pin to control the voltage bias on the HDMI data lines: - rk3576-100ask-dshanpi-a1 - rk3576-armsom-sige5 - rk3576-evb1-v10 - rk3576-evb2-v10 - rk3576-nanopi-m5 - rk3576-roc-pc - rk3576-rock-4d The pin must be asserted when operating in HDMI 2.1 FRL mode and deasserted for HDMI 1.4/2.0 TMDS mode. Wire up the hdmi node to its dedicated GPIO via frl-enable-gpios to allow adjusting the bias when transitioning between TMDS and FRL modes. Signed-off-by: Cristian Ciocaltea Link: https://patch.msgid.link/20260428-dts-rk-frl-enable-gpios-v2-1-924df9db884a@collabora.com Signed-off-by: Heiko Stuebner --- .../arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts | 9 +++++++++ arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts | 9 +++++++++ arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts | 9 +++++++++ arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts | 9 +++++++++ arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts | 9 +++++++++ arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts | 9 +++++++++ arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts | 9 +++++++++ 7 files changed, 63 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts b/arch/arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts index b19f9b6be6bf..a9e3beb3ee5e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-100ask-dshanpi-a1.dts @@ -278,6 +278,9 @@ &gpu { }; &hdmi { + frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -738,6 +741,12 @@ hp_det: hp-det { }; }; + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + pcie { pcie_reset: pcie-reset { rockchip,pins = <1 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>; diff --git a/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts index 1c100ffd1518..c3e8966c09c4 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-armsom-sige5.dts @@ -304,6 +304,9 @@ &gpu { }; &hdmi { + frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -819,6 +822,12 @@ hp_det_l: hp-det-l { }; }; + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + hym8563 { hym8563_int: hym8563-int { rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>; diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts index fb0dd1bc5148..4c82980a9f63 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts @@ -370,6 +370,9 @@ &gpu { }; &hdmi { + frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -895,6 +898,12 @@ host_wake_bt: host-wake-bt { }; }; + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + hym8563 { rtc_int: rtc-int { rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>; diff --git a/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts b/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts index 98d5d00d63b5..dfc756d5ec5e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-evb2-v10.dts @@ -375,6 +375,9 @@ &gpu { }; &hdmi { + frl-enable-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -832,6 +835,12 @@ image_pwren: image-pwren { }; }; + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + hym8563 { rtc_int: rtc-int { rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>; diff --git a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts index 7406a4adf810..227fe6f3ec7c 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts @@ -327,6 +327,9 @@ &gpu { }; &hdmi { + frl-enable-gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -813,6 +816,12 @@ gmac1_rst: gmac1-rst { }; }; + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + hym8563 { hym8563_int: hym8563-int { rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>; diff --git a/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts index d0ab1d1e0e11..54de3a50571f 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts @@ -283,6 +283,9 @@ ð0m0_rgmii_bus }; &hdmi { + frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -720,6 +723,12 @@ &sdmmc { }; &pinctrl { + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + hym8563 { rtc_int_l: rtc-int-l { rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>; diff --git a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts index 899a84b1fbf9..cc054c837317 100644 --- a/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts +++ b/arch/arm64/boot/dts/rockchip/rk3576-rock-4d.dts @@ -289,6 +289,9 @@ &gpu { }; &hdmi { + frl-enable-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>; + pinctrl-0 = <&hdmi_txm0_pins &hdmi_tx_scl &hdmi_tx_sda &hdmi_tx_on_h>; + pinctrl-names = "default"; status = "okay"; }; @@ -720,6 +723,12 @@ &pcie0 { }; &pinctrl { + hdmi { + hdmi_tx_on_h: hdmi-tx-on-h { + rockchip,pins = <2 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + hym8563 { hym8563_int: hym8563-int { rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;